diff --git a/v2/object/types.go b/v2/object/types.go
index 6b1dcc3..94e9ed9 100644
--- a/v2/object/types.go
+++ b/v2/object/types.go
@@ -312,6 +312,7 @@ const (
 	MatchStringEqual
 	MatchStringNotEqual
 	MatchNotPresent
+	MatchCommonPrefix
 )
 
 func (h *ShortHeader) GetVersion() *refs.Version {